Permutation-lock



(Model.)

A. S. BOIGE.

PERMUTATION LOCK.

N0.`3'72,512. Patented Nov. 1, 1887.

'l fi Minnesota, have invented certain new and use-.

in guides 71..

ALVIN BOICE, OF NEV HIGHLAND, MINNESOTA.

PERNIUTATION-LOCK.

SPECIFICATION forming part of Letters Patent No. 372,512, dated November 1, 1887.

Application filed July 30, 1887. Serial No2-15,679. (Mndeh) To @ZZ 1071/0711, it may concern,.-

Zen of the United States, residing at New Richland, in the county of XVascca and State of Aful Improvements in Combination-Locks; and I do hereby declare the following to be a full, 4Bar, and exact description of the invention, ich as will enable others skilled inthe art to 1 hich it appertains to make and use the same. rlhis invention relates to combination-locks; and it consists in certain improvements in the onstruction of the saine, as hereinafter dcicribed and claimed.` In my device the tumblers are placed on a sleeve on the spindle of 'the door-knobs, the said spindle having engagement with the tumblers and passing through a sliding plate which carries a springcatch, which closes in the notches of the tumblers when the combination is on, and may be readily raised to throw the combination.

In the accompanying drawings, Figure 1 represents an interior view of thelock. Fig. 2 is a section taken on line m of Fig. l. Fig. 3 illustrates the sliding catch which connects with the tumblers when the combination is on. Fig. a is a plan view of the locking-bolt.

A designates the casing ol" the lock7 and B the main colt, which is slotted, and inits normal position is pressed forward by a spring, b, which rests against a stud, a, iixcd to the casing and extending into the slot of the bolt. The rear part of bolt I3 is formed, substantially as shown, with the vertical part a in position to be pressed rearward by the lever c, actuated by the knob-spindle d, so that the bolt B may be retracted by turning the doorknob in either direction.

C indicates a vertical plate,having an clougated aperture, e, for the knob-spindle d, which passes through it, and provided with a projecting catch, To the rear of plate C, a cam-lever, c, is secured by a swivel-joint, g, the lever having an aperture, c', for the spindle d. rthe aperture c, as will be seen, is elongated, the upper part being rectangular and the lower part round, for the purpose hereinafter stated. The plate C is placed in position adjacent to the part a of the bolt I3, and has alimited sliding moi-'ement vertically A spring, 1.x, bearing down on a projection of theplate, serves to press the catch f into the notches of the tuinblers when the combination is on. That part n of the spindle d which is in contact with lever c when the combination is on is made square in section to Iit the upper rectangular part of the aperture c in the lever, the bolt A being` retracted through said lever.

D indicates the tumblers, which are usuallyT three in number, with intervening washers, and provided with notches o to receive catchf. The tumblcrs are placed on a sleeve or arbor, p, on the knob-spindle, and engagement bctween the spindle andv the first tumbler is effected through a small arm, s, projecting from a flange on the spindle. The several tumblers are constructed to engage one with another, and the combination is formed by turning the knob'spindle to the lelt and right, alternately, until the several notches o in said tumblcrs are brought in line under the catch j', which is sprung into them,whcn the lock works from the knobspindle like any ordinary lock.

E indicates a knob on the end of a vertical rod extending from the lower end of the plate C through the casing, as shown, and the plate being raised by pressing upward the knob E, the catch f is also raised from connection with the tumblers and the cam-lever c from engagement with the knob-spindle, the latter then being in the circular portion of the aperture c. The combination is thus readily thrown by a person within turning the doorknob to the right or left, the tnmblers being rotated by the spindle d.

F indicates a knob to a small bolt or stud, Q, rctai ned by a spring, i', and movable along a slot in the casing, the bolt being used asa night-lock by setting it in line with the bolt A small knob passing through a slot in the casing is usually attached to the bolt B, so that it may be moved from the inside without using the door-knob.

In addition to the dial II of the outer doorknob, G, a small dial may be'applied and used in connection with the inside knob, G', so that the combination may be formed from either the outside or the inside.

I claima 1. The combination, with thcknob-spindle havinga rectangular portion, a, a plate, C, carryinga catch, f, and cam-lever c, having aperture c', of the lock-bolt adapted to engage the IOO cam-lever,theknob-spindle,andaseries of tum- I n testimony whereof I have affixed my sigblers, substantially as and for the purposes denature in presence of Witnesses.- scribed. 2. The combination, with plate C, pro- ALVIN S. BOIGE. 5 vided with catch j', and a vertical rod having a. knob, E, and earn-lever e, having a swivelitrlesses.l connection with the plate, of the lock-bolt, J. F. HINDMAN, adapted to engage said cam-lever, the knob- N. L. PETERSON, spindle d, and tumblers, substantially as sei: LEWls lVLBAsoHALL.

Io forth land described.'

It is hereby eertied that the residence of the patentee in Letters Patent No. 372,512, granted November l, 1887, upon the application of Alvin S. Boioe, for an improvement in Fermentation-Locks, was erroneously Written in the grant New Richmond7 Miunesota,77 Whereas said residence should have been written New Richlcind, Minnesota, and that the Letters Patent should be read with this correction therein that the same may conform to the record of the ease in the Patent Ofee.

Signed, eountersignetl, and sealed this 6th (lay of December, A. D. 1887.

` D. L. HAWKrNs,

Acting Seoretcwy of the Interior.

[SEAL] Gountersigned:

BENTON J. HALL,

Commissioner of Patents. 

